Semiconductor device and method of manufacturing the same including raised source/drain comprising SiGe or SiC
    11.
    发明授权
    Semiconductor device and method of manufacturing the same including raised source/drain comprising SiGe or SiC 失效
    半导体器件及其制造方法,包括包含SiGe或SiC的升高源极/漏极

    公开(公告)号:US06713359B1

    公开(公告)日:2004-03-30

    申请号:US09564191

    申请日:2000-05-04

    IPC分类号: H01L21336

    摘要: SiGe or SiC films are selectively grown on source/drain regions, followed by selectively growing silicon. A monocrystalline film having a high dislocation density or a polycrystalline film can be grown in growing the silicon film by making the C or Ge concentration higher than a predetermined level. The silicon layer on each of the source/drain regions is not monocrystalline or, even if monocrystalline, has a high density of dislocation. Therefore, the silicon film formed thereon is in the form of a monocrystalline silicon film having a high dislocation density or a polycrystalline silicon film. It is possible to suppress an impurity diffusion to reach a deep region caused by channeling of ions generated in the doping step by means of an ion implantation.

    摘要翻译: SiGe或SiC膜选择性地在源极/漏极区域上生长,随后选择性地生长硅。 通过使C或Ge浓度高于预定水平,可以在生长硅膜时生长具有高位错密度的单晶膜或多晶膜。 源极/漏极区域中的每一个上的硅层不是单晶的,即使单晶也具有高密度的位错。 因此,其上形成的硅膜是具有高位错密度的单晶硅膜或多晶硅膜的形式。 可以通过离子注入来抑制在掺杂步骤中产生的离子的沟道引起的深度区域的杂质扩散。

    Method of deforming a trench by a thermal treatment
    18.
    发明授权
    Method of deforming a trench by a thermal treatment 失效
    通过热处理使沟槽变形的方法

    公开(公告)号:US6100132A

    公开(公告)日:2000-08-08

    申请号:US106082

    申请日:1998-06-29

    IPC分类号: H01L21/02 H01L21/8242

    摘要: A semiconductor device includes a semiconductor substrate having a trench on a surface thereof and an embedding member embedding the interior of the trench therewith. While the section of the trench when cut by a first plane perpendicular to the direction of the depth of the trench is defined as a first section and the section of the trench when cut by a second plane perpendicular to the direction of the depth of the trench and closer to the bottom of the trench than the first plane is defined as a second section, the area of the first section is smaller than that of the second section and a minimum radius of curvature of the first section is smaller than a minimum radius of curvature of the second section. As a result, it is possible to lessen the concentration of the electric field into the bottom of the trench.

    摘要翻译: 半导体器件包括在其表面上具有沟槽的半导体衬底和嵌入沟槽内部的嵌入构件。 虽然当垂直于沟槽深度方向的第一平面切割沟槽的部分被定义为第一部分,并且当垂直于沟槽深度方向的第二平面切割沟槽的部分时 并且比所述第一平面更靠近所述沟槽的底部被限定为第二部分,所述第一部分的面积小于所述第二部分的面积,并且所述第一部分的最小曲率半径小于所述第一部分的最小半径 第二部分的曲率。 结果,可以减小进入沟槽底部的电场的浓度。